1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2001
4 */
5
6 /*\
7 * [Description]
8 *
9 * Testcase to test whether chdir(2) sets errno correctly.
10 */
11
12 #include <errno.h>
13 #include "tst_test.h"
14
15 static char long_dir[] = "abcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyzabcdefghijklmnopqrstmnopqrstuvwxyz";
16 static char noexist_dir[] = "noexistdir";
17
18 static struct tcase {
19 char *dir;
20 int exp_errno;
21 } tcases[] = {
22 {long_dir, ENAMETOOLONG},
23 {noexist_dir, ENOENT},
24 {0, EFAULT}, // bad_addr
25 };
26
verify_chdir(unsigned int i)27 static void verify_chdir(unsigned int i)
28 {
29 TST_EXP_FAIL(chdir(tcases[i].dir), tcases[i].exp_errno, "chdir()");
30 }
31
setup(void)32 static void setup(void)
33 {
34 tcases[2].dir = tst_get_bad_addr(NULL);
35 }
36
37 static struct tst_test test = {
38 .needs_tmpdir = 1,
39 .test = verify_chdir,
40 .tcnt = ARRAY_SIZE(tcases),
41 .setup = setup,
42 };
43